adc12_a_ex3_extRef.c File Reference

#include "driverlib.h"

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Functions
void	main (void)

Function Documentation

main()

void main

(

void

)

ADC12_A - Sample A0 Input, External Ref MSP430F552x Demo

This example shows how to use an external positive reference for the ADC12_A. The external reference is applied to the VeREF+ pin. AVss is used for the negative reference. A single conversion is performed on channel A0. The conversion results are stored in ADC12MEM0 and Test by applying a voltage to channel A0, then setting and running to a break point at the "_NOP()" instruction. To view the conversion results, open an SFR window in debugger and view the contents of ADC12MEM0.

NOTE: VeREF+ range: 1.4V (min) to AVCC (max) VeREF- range: 0V (min) to 1.2V (max) Differential ref voltage range: 1.4V(min) to AVCC(max) (see datasheet for device specific information)

    MSP430F552x
-------------------

/|| | | | | –|RST P6.0/A0|<- Vin | P5.0/VeREF+|<- REF | |

This example uses the following peripherals and I/O signals. You must review these and change as needed for your own board:

• ADC12_A peripheral
• GPIO Port peripheral
• A0
• VeREF+

Definition at line 70 of file adc12_a_ex3_extRef.c.

References __no_operation(), and param.